<template>
  <div class="main user-layout-forgot">
    <template v-if="!sended">
      <h3>
        <span>通过邮箱重置</span>
      </h3>
      <a-form :form="formCaptcha" ref="formForgot" id="formForgot">
        <a-form-item>
          <a-input
            size="large"
            type="text"
            placeholder="注册邮箱地址"
            v-decorator="['email',{rules: [{ required: true, type: 'email', message: '请输入邮箱地址' }], validateTrigger: ['change', 'blur']}]"
          >
            <a-icon slot="prefix" type="mail" :style="{ color: 'rgba(0,0,0,.25)' }" />
          </a-input>
        </a-form-item>
        <a-form-item>
          <a-button
            size="large"
            type="primary"
            htmlType="submit"
            class="forgot-button"
            :loading="forgotBtn"
            @click.stop.prevent="handleSubmitCaptcha"
            :disabled="forgotBtn"
          >获取验证码</a-button>
          <router-link class="login" :to="{ name: 'login' }">使用其他账户登录</router-link>
        </a-form-item>
      </a-form>
    </template>
    <template v-else>
      <h3>
        <span>重置密码</span>
      </h3>
      <a-form :form="form" ref="formRegister" id="formRegister">
        <a-form-item>
          <a-input size="large" type="text" placeholder="邮箱" :value="email" disabled>
            <a-icon slot="prefix" type="mail" :style="{ color: 'rgba(0,0,0,.25)' }" />
          </a-input>
        </a-form-item>

        <a-popover placement="rightTop" trigger="click" :visible="state.passwordLevelChecked">
          <template slot="content">
            <div :style="{ width: '240px' }">
              <div :class="['user-register', passwordLevelClass]">
                强度：
                <span>{{ passwordLevelName }}</span>
              </div>
              <a-progress
                :percent="state.percent"
                :showInfo="false"
                :strokeColor=" passwordLevelColor "
              />
              <div style="margin-top: 10px;">
                <span>请至少输入 6 个字符。请不要使用容易被猜到的密码。</span>
              </div>
            </div>
          </template>
          <a-form-item>
            <a-input
              v-decorator="['password',{rules: [{ required: true, message: '至少6位密码，区分大小写' },{ validator: this.handlePasswordLevel }], validateTrigger: ['change', 'blur']}]"
              size="large"
              type="password"
              @click="handlePasswordInputClick"
              autocomplete="false"
              placeholder="密码须至少6位，且区分大小写"
            >
              <a-icon slot="prefix" type="lock" :style="{ color: 'rgba(0,0,0,.25)' }" />
            </a-input>
          </a-form-item>
        </a-popover>

        <a-form-item>
          <a-input
            v-decorator="['password2',{rules: [{ required: true, message: '至少6位密码，区分大小写' },{ validator: this.handlePasswordCheck }], validateTrigger: ['change', 'blur']}]"
            size="large"
            type="password"
            autocomplete="false"
            placeholder="再次确认您的密码"
          >
            <a-icon slot="prefix" type="check-circle" :style="{ color: 'rgba(0,0,0,.25)' }" />
          </a-input>
        </a-form-item>

        <a-form-item>
          <a-input
            v-decorator="['captcha',{rules: [{ required: true, message: '请输入验证码' }], validateTrigger: ['blur']}]"
            size="large"
            type="text"
            placeholder="验证码"
          >
            <a-icon slot="prefix" type="safety-certificate" :style="{ color: 'rgba(0,0,0,.25)' }" />
          </a-input>
        </a-form-item>

        <a-form-item>
          <a-button
            block
            size="large"
            type="primary"
            htmlType="submit"
            class="register-button"
            :loading="registerBtn"
            @click.stop.prevent="handleSubmit"
            :disabled="registerBtn"
          >提交</a-button>
        </a-form-item>
      </a-form>
    </template>
  </div>
</template>

<script>
import md5 from "md5";
import { forgot } from "@/pearapi/user";
import { checkResponse } from "@/assets/js/utils";
import { notice } from "@/assets/js/notice";
import { _getMailCaptcha, _resetPasswordByMail } from "@/pearapi/user";

const levelNames = {
  0: "低",
  1: "低",
  2: "中",
  3: "强"
};
const levelClass = {
  0: "error",
  1: "error",
  2: "warning",
  3: "success"
};
const levelColor = {
  0: "#ff0000",
  1: "#ff0000",
  2: "#ff7e05",
  3: "#52c41a"
};
export default {
  name: "Forgot",
  components: {},
  data() {
    return {
      form: this.$form.createForm(this),
      formCaptcha: this.$form.createForm(this),
      email: "",
      sended: false,
      forgotBtn: false,

      state: {
        time: 60,
        smsSendBtn: false,
        passwordLevel: 0,
        passwordLevelChecked: false,
        percent: 10,
        progressColor: "#FF0000"
      },
      registerBtn: false
    };
  },
  computed: {
    passwordLevelClass() {
      return levelClass[this.state.passwordLevel];
    },
    passwordLevelName() {
      return levelNames[this.state.passwordLevel];
    },
    passwordLevelColor() {
      return levelColor[this.state.passwordLevel];
    }
  },
  methods: {
    handleSubmitCaptcha() {
      this.formCaptcha.validateFields((err, values) => {
        if (!err) {
          this.forgotBtn = true;
          let params = this.formCaptcha.getFieldsValue();
          this.email = params.email;
          _getMailCaptcha(this.email).then(res => {
            this.sended = true;
            this.forgotBtn = false;
            this.$message.destroy();
            if (!checkResponse(res)) {
              return false;
            }
            let tips = "验证码获取成功";
            if (res.data) {
              tips += "，您的验证码为：" + res.data;
            }
            notice({ title: "提示", msg: tips }, "notification", "success", 8);
          });
        }
      });
    },
    handleSubmit() {
      this.form.validateFields((err, values) => {
        if (!err) {
          this.hidePasswordLevelChecked = false;
          this.registerBtn = true;
          let params = this.form.getFieldsValue();
          params.email = this.email;
          params.password = md5(params.password);
          params.password2 = md5(params.password2);
          _resetPasswordByMail(params).then(res => {
            this.registerBtn = false;
            if (!checkResponse(res)) {
              return false;
            }
            notice(
              { title: "提示", msg: "重置密码成功，请登录" },
              "notification",
              "success"
            );
            this.$router.push({ name: "login" });
          });
        }
      });
    },
    handlePasswordInputClick() {
      this.state.passwordLevelChecked = true;
    },
    hidePasswordLevelChecked() {
      this.state.passwordLevelChecked = false;
    },
    handlePasswordLevel(rule, value, callback) {
      let level = 0;

      // 判断这个字符串中有没有数字
      if (/[0-9]/.test(value)) {
        level++;
      }
      // 判断字符串中有没有字母
      if (/[a-zA-Z]/.test(value)) {
        level++;
      }
      // 判断字符串中有没有特殊符号
      if (/[^0-9a-zA-Z_]/.test(value)) {
        level++;
      }
      this.state.passwordLevel = level;
      this.state.percent = level * 30;
      if (level >= 2) {
        if (level >= 3) {
          this.state.percent = 100;
        }
        callback();
      } else {
        if (level === 0) {
          this.state.percent = 10;
        }
        callback(new Error("密码强度不够"));
      }
    },

    handlePasswordCheck(rule, value, callback) {
      const password = this.form.getFieldValue("password");
      if (value === undefined) {
        callback(new Error("请输入密码"));
      }
      if (value && password && value.trim() !== password.trim()) {
        callback(new Error("两次密码不一致"));
      }
      callback();
    }
  },
  watch: {}
};
</script>
<style lang="less">
.user-register {
  &.error {
    color: #ff0000;
  }

  &.warning {
    color: #ff7e05;
  }

  &.success {
    color: #52c41a;
  }
}

.user-layout-register {
  .ant-input-group-addon:first-child {
    background-color: #fff;
  }
}
</style>
<style lang="less">
.user-layout-forgot {
  & > h3 {
    font-size: 16px;
    margin-bottom: 20px;
  }

  .getCaptcha {
    display: block;
    width: 100%;
    height: 40px;
  }

  .forgot-button {
    width: 50%;
  }

  .login {
    float: right;
    line-height: 40px;
  }
}
</style>
